IT1057851B - PROCEDURE FOR THE PREPARATION OF PIPONI RANGE AND PRODUCTS SO OBTAINED - Google Patents

PROCEDURE FOR THE PREPARATION OF PIPONI RANGE AND PRODUCTS SO OBTAINED

Info

Publication number
IT1057851B
IT1057851B IT2252762A IT2252762A IT1057851B IT 1057851 B IT1057851 B IT 1057851B IT 2252762 A IT2252762 A IT 2252762A IT 2252762 A IT2252762 A IT 2252762A IT 1057851 B IT1057851 B IT 1057851B
Authority
IT
Italy
Prior art keywords
piponi
procedure
products
preparation
range
Prior art date
Application number
IT2252762A
Other languages
Italian (it)
Original Assignee
Pfizer & Co C
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US171732A external-priority patent/US3130204A/en
Application filed by Pfizer & Co C filed Critical Pfizer & Co C
Priority claimed from US202103A external-priority patent/US3133089A/en
Priority claimed from US202101A external-priority patent/US3159652A/en
Priority claimed from US202102A external-priority patent/US3171842A/en
Application granted granted Critical
Publication of IT1057851B publication Critical patent/IT1057851B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/34—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D309/36—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms
    • C07D309/40—Oxygen atoms attached in positions 3 and 4, e.g. maltol

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Saccharide Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
IT2252762A 1961-11-21 1962-03-30 PROCEDURE FOR THE PREPARATION OF PIPONI RANGE AND PRODUCTS SO OBTAINED IT1057851B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US15403661A 1961-11-21 1961-11-21
US171732A US3130204A (en) 1962-02-07 1962-02-07 Preparation of gamma-pyrones
US202103A US3133089A (en) 1962-06-13 1962-06-13 Preparation of gamma pyrones
US202101A US3159652A (en) 1962-06-13 1962-06-13 Preparation of gamma-pyrones
US202102A US3171842A (en) 1962-06-13 1962-06-13 Preparation of gamma pyrones

Publications (1)

Publication Number Publication Date
IT1057851B true IT1057851B (en) 1982-03-30

Family

ID=27538464

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2252762A IT1057851B (en) 1961-11-21 1962-03-30 PROCEDURE FOR THE PREPARATION OF PIPONI RANGE AND PRODUCTS SO OBTAINED

Country Status (2)

Country Link
GB (1) GB1033511A (en)
IT (1) IT1057851B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0549490A (en) * 1991-08-19 1993-03-02 Yakurigaku Chuo Kenkyusho:Kk New method for producing gamma-pyrone derivative
CN110903271A (en) * 2019-12-20 2020-03-24 安徽金禾实业股份有限公司 Method for recovering ethyl maltol in waste residue by acid-base neutralization method

Also Published As

Publication number Publication date
GB1033511A (en) 1966-06-22

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